Most of the states are requiring state ID information to verify a person's identity. The ID information does not necessarily have to come from their state (in your case, Colorado), but it does need to be unexpired. A California license will not prevent you from filing a Colorado return, nor would that in and of itself slow down return processing. However, all states have implemented identity theft prevention protocols and at random will sometimes send a letter to a taxpayer who has filed a return to verify their identity with the state before their return is finished processing. If the unlikely event that you are chosen for this, it is not because you had a valid California license.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.